5 Basic Properties of Neodymium Magnets

Neodymium magnets, NdFeB, are the most widely used magnetic material due to their high specific energy density and low production cost. It consists of a combination of iron and boron elements. NdFeB are permanent magnets with a certain magnetization direction. Such magnets are also called anisotropic. They act extremely stable against demagnetizing fields.

NdFeB magnets are versatile magnets because of their features. Its main uses are generators and electric motors, magnet adhesive systems, coding magnets and filter systems.

Properties

These magnets are very sensitive to impact and high pressure. It is prone to corrosion due to the high iron it contains. For this reason, coating is required. Working temperatures vary depending on the class they are connected to. Class N magnets generally operate at 80 ° C and class H magnets usually operate at around 230 ° C. In addition to its class, the thickness of the magnet is also effective at operating temperature. For example; You bought an N-class Neodymium magnet. But the magnet you receive is thin, then the working temperature can be even below 75 ° C.

It can basically be covered in three different ways.

  1. NiCuNi nickel plated (shiny metallic)
  2. Zn Coating
  3. Black / Gray epoxy coating

Different Shape and Size Options

One of the biggest factors for choosing neodymium magnets is their shape and size options. Available in the form of disks, cubes, sticks, rings or balls and in different sizes. For example; you can get a magnet between 1mm and 20mm in cubic form. However, many manufacturers do not prefer to produce a magnet smaller than 1 mm. Because it is very difficult to produce small magnets. On the other hand, if you need small sizes of magnets, you will be asked to find a company that produces, as well as to give a high number of orders.

If we do not take into account the very small production difficulties, NdFeB is preferred primarily in most sectors due to its variety of shapes and sizes, as well as its strong magnetic field.

Before we finally start using a magnet, we would like to remind you that you have to undergo a minor test and that you must adhere to the manufacturer’s warnings.

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